Testing the principle of equivalence by supernova neutrinos
High Energy Physics - Phenomenology
2011-05-23 v1 Astrophysics
Abstract
We study the possible impact of the neutrino oscillation which could be induced by a tiny violation of equivalence principle (VEP) for neutrinos emitted from supernova driven by gravitational collapse. Due to the absence of any significant indication of neutrino oscillation in the SN1987A data, we obtain sever bounds on relevant VEP parameters \delta \gamma\lsim O(10^{-31}) for massless or degenerated neutrinos and \delta \gamma \lsim O(10^{-16})\times [\Delta m^2/10^{-5} eV^2] for massive neutrinos.
Cite
@article{arxiv.hep-ph/0104054,
title = {Testing the principle of equivalence by supernova neutrinos},
author = {M. M. Guzzo and H. Nunokawa and R. Tomas},
journal= {arXiv preprint arXiv:hep-ph/0104054},
year = {2011}
}
Comments
Revtex, 16 pages, 4 figures